3.2 Evolutionary Genetics

Question 1

Define Anagenesis

Answer 1

evolution taking place in a single group with the passage of time

Question 2

Define Cladogenesis

Answer 2

splitting of one lineage into two: new species arise

Question 3

What is the concept of a phylogentic tree

Answer 3

A graphical representation of the evolutionary relationships among a group of organisms

Question 4

What is allopatric speciation?

Answer 4

When a geographic barrier splits a population into two or more groups and prevents gene flow between the isolated groups

Question 5

Describe the molecular clock

Answer 5

Rate at which protein evolves is roughly constant over time. Change that protein has undergone can be used as a clock

Question 6

What are the rates of evolution

Answer 6

exon shuffling and gene duplication